I had that surgery 5+ years ago. Had the same issue with throat that lasted around a week after surgery. Have to admit, I felt horrible for the first 7-10 days, it was the worst part of having the surgery. My doctor didn’t tell me about this either; I’m guessing it’s because they have to move your throat some to access the disk/vertebrae site.
I was on a number of drugs and thought they gave me something to help with it but I can’t remember off hand. I’ll see if I can jog my memory, probably still have the paperwork somewhere.
I slept in a recliner for a number of days which seemed to help with swelling, but swallowing food and water was a challenge. Maybe stick to a liquid diet for food for awhile. I remember trying to eat a salad, that was a mistake because of the lettuce.
How long ago did you have surgery? Definitely check with your doctor.
Hang in there!